Hi we went in sept going again in sept, we didnt use the watersports soz cant comment on that the diving was great kassiopi diving have a base at the hotel we just booked with them they have try dives most days free, my husband is experienced diver he had approx 5 dives over the fornight and our daughter had a shallow dive one of the times we paid approx £100 at the end of the stay, there is a free bus to the dive shop in kassiopi and then the lads drop you back off at the hotel gate it couldnt have been easier hope you have a great time